I was curious about that. Yet another reason I'm happy we have stayed on the perpetual licensed dongle version because that is exactly how we have things set up. I'm kind of surprised that they have not broken the Production Manager and Designer into two separate "licenses" when bought as any of the editions which have Production Manager. It just makes sense in that the "ideal" configuration is a shop would have a dedicated and separate
computer for the RIP (Production Manager) itself. I realize many, if not most do not do this but it does give the opportunity to eliminate any "surfing" or any other general use on a machine that in my opinion is critical to the business running.
What is nice is we have multiple designers here and at any time any one person can open the Designer part of Flexi. If another tries they get a error - cannot find the license key. The dongle is plugged in on the dedicated RIP and it always has Production Manager open. We then installed the very same Flexi install on every workstation (then delete the Production Manager icons since that is not needed on the workstations). The workstations basically see the dongle over the network. Sometimes someone does have to wait for another to get out of Flexi so they can get in and send a job but we have also since added a "designer" only also dongle license for one employee who is submitting the most jobs. All users send jobs with a "hold in list" instead of "send now". Than anyone can simply walk over to the RIP, select their job, load the material they need and send it. Works great for us.